... aluminum dent pulling kit. 2.Welding 4-6mm aluminium stud and steel stud Resistance welding machine 1. Brife:Car body ... small, medium, and big chocks, (door, cover…) for pin welding, avoiding thinning 2.It has below 10 features:Remove dents ... voltage control systemFor aluminum, steel car body repairingControl with a digital microprocessorDigital display, easy to operateWelding 4-6mm aluminium stud ...